Microimm 2500 - Study guides, Class notes & Summaries

prokaryotessmallest, simplest organisms on Earth; most abundant; includes bacteria & archaea; lack nucleus and complex organelles four phases of bacterial growthlag; log; stationary; death bacteria reproductive mechanismbinary fission bacterial generation timetime between generations (time for one division) reason stationary phase existsbacteria reach a point where resources are being used quickly enough that bacteria can no longer grow coccussphere-shaped bacteria

Measlesvirus that is transmitted in aerosols through coughs/sneezes - mostly eradicated in Canada due to vaccination - still present in SA and Africa Endogenous Viral Sequencesviral genetic sequences from infections that occurred that integrate into our own genetic material - no longer infectious Intrinsic Defensesphysical barriers like skin/sweat that keep viruses from entering our body Polydnavirusgene from a virus in wasps that allows eggs to survive in caterpillar larvae by suppr...

MICROIMM 2500B Micro MIDTERM 2 NOTES Lecture 1: Introduction to Bacteriology - There are not that many bacteria that are actually pathogenic; most bacteria are beneficial - Prokaryotes: the smallest, simplest and most abundant cells on earth; includes bacteria and archaea - Lack a nucleus and complex organelles - Viruses outnumber the amount of prokaryotes - Bacteria can grow fast - bacteria reproduce by binary fission - 4 stages of growth: lag, log phase, stationary growth, and th...